PhlebotomyBloodlettingCommunity Health ServicesHalfway HousesMilieu TherapyHemochromatosisCommunity Health PlanningProgram EvaluationHealth Care CoalitionsHealth PromotionProgram DevelopmentIron OverloadPolycythemiaAnemia, NeonatalConsumer ParticipationPolycythemia VeraChelation TherapyFerritinsIronCaliforniaErythropoietinPorphyria Cutanea TardaHematocritAIDS-Related Opportunistic InfectionsBlood Specimen CollectionCerebrospinal Fluid PressureAnemiaBlood Volume DeterminationErythropoiesisHemoglobinsBlood Component TransfusionNitrilotriacetic AcidBlood TransfusionPhenylhydrazines